tonitruisDictionary entriestonitruum, tonitrui:Neuter · Noun · 2nd declensionFrequency:Lesser= thunder;Entry →abl. pl.dat. pl.loc. pl.ExamplesLiber IILucius Annaeus Seneca (Seneca the Younger) from QUAESTIONES NATURALES"...terrarum motu quaestionem eo posuisti loco, quo de tonitruis fulgoribusque dicturus? Quia, cum motus terrae fiat spiritu, spiritus..."